CA972789A - Pressure switches - Google Patents

Pressure switches

Info

Publication number
CA972789A
CA972789A CA149,933A CA149933A CA972789A CA 972789 A CA972789 A CA 972789A CA 149933 A CA149933 A CA 149933A CA 972789 A CA972789 A CA 972789A
Authority
CA
Canada
Prior art keywords
pressure switches
switches
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA149,933A
Other versions
CA149933S (en
Inventor
Graham B. Kent
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Actuated Controls Ltd
Original Assignee
Actuated Controls Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Actuated Controls Ltd filed Critical Actuated Controls Ltd
Application granted granted Critical
Publication of CA972789A publication Critical patent/CA972789A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/10—Characterised by the construction of the motor unit the motor being of diaphragm type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B5/00—Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
CA149,933A 1971-08-24 1972-08-22 Pressure switches Expired CA972789A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3953471 1971-08-24

Publications (1)

Publication Number Publication Date
CA972789A true CA972789A (en) 1975-08-12

Family

ID=10410093

Family Applications (1)

Application Number Title Priority Date Filing Date
CA149,933A Expired CA972789A (en) 1971-08-24 1972-08-22 Pressure switches

Country Status (8)

Country Link
US (1) US3789171A (en)
CA (1) CA972789A (en)
DE (1) DE2241184C3 (en)
FR (1) FR2150487B3 (en)
GB (1) GB1348431A (en)
IT (1) IT964065B (en)
NL (1) NL7211412A (en)
SE (1) SE378703B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846600A (en) * 1973-10-23 1974-11-05 Eaton Corp Means for calibrating pressure switches at extra-low pressure settings
US5198631A (en) * 1991-09-11 1993-03-30 General Electric Company Pressure responsive control device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2873332A (en) * 1956-02-01 1959-02-10 William J Williams Adjustable differential switch actuator
US2950367A (en) * 1959-07-13 1960-08-23 Gen Motors Corp Multiple speed switch mechanism
DE1273037B (en) * 1960-11-08 1968-07-18 Walter Holzer Pressure dependent electrical switch
US3291932A (en) * 1964-12-14 1966-12-13 Controls Co Of America Pressure responsive control reset structure
US3557329A (en) * 1969-03-17 1971-01-19 Dresser Ind Pressure responsive switch

Also Published As

Publication number Publication date
DE2241184B2 (en) 1975-04-24
IT964065B (en) 1974-01-21
NL7211412A (en) 1973-02-27
FR2150487B3 (en) 1975-10-03
DE2241184C3 (en) 1976-01-02
SE378703B (en) 1975-09-08
US3789171A (en) 1974-01-29
DE2241184A1 (en) 1973-03-01
GB1348431A (en) 1974-03-20
FR2150487A1 (en) 1973-04-06

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